Systems and Methods for Therapeutic Intrathoracic Pressure Regulation
AssigneeResQSystems, Inc.
InventorsJames Homuth, Greg Voss, Keith Lurie, Anja Metzger
Life of this patent
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Abstract
Embodiments of the present invention provide systems and methods for delivering respiratory treatment to a patient. For example, a treatment system may include a mechanism for delivering a positive pressure breath to a patient, and one or more limb flow control assemblies which modulate gas flow to and from the patient. Exemplary treatment techniques are embodied in anesthesia machines, mechanical ventilators, and manual ventilators.
Claims23
1-109. (canceled)
A system for providing intrathoracic pressure regulation (IPR) to an individual, the system comprising:
- a patient connection mechanism for coupling with an airway of the individual;
- a flow control assembly comprising a housing having a vent, an impeller disposed within the housing, and a motor in operative association with the motor;
- and
- an external pressure source selected from the group consisting of a manual bag valve mask mechanism, a mechanical ventilator machine, and an anesthesia machine,
- wherein the external pressure source is in fluid communication with the housing vent of the flow control assembly,
- wherein the impeller of the flow control assembly is disposed between the patient connection mechanism and the external pressure source, along a fluid passage that extends between the patient connection mechanism and the external pressure source, and
- wherein the flow control assembly is configured to allow retrograde airflow from the external pressure source to the patient connection mechanism while simultaneously compelling airflow from the patient connection mechanism to the housing vent.
A system for promoting venous blood flow to the thorax of a patient, the system comprising:
- a patient connection mechanism for coupling with an airway of the individual;
- a flow control assembly comprising a housing having a vent, an impeller disposed within the housing, and a motor in operative association with the motor;
- and
- an external pressure source selected from the group consisting of a manual bag valve mask mechanism, a mechanical ventilator machine, and an anesthesia machine,
- wherein the external pressure source is in fluid communication with the housing vent of the flow control assembly,
- wherein the impeller of the flow control assembly is disposed between the patient connection mechanism and the external pressure source, along a fluid passage that extends between the patient connection mechanism and the external pressure source, and
- wherein the flow control assembly is configured to allow retrograde airflow from the external pressure source to the patient connection mechanism while simultaneously compelling airflow from the patient connection mechanism to the housing vent.
A method of providing intrathoracic pressure regulation (IPR) to an individual, the method comprising:
- coupling an IPR system with an airway of the individual, the IPR system having a housing with a vent, an impeller disposed within the housing, a motor in operative association with the motor, and an external pressure source in fluid communication with the housing vent, wherein the impeller is disposed between the airway and the external pressure source, along a fluid passage that extends between the airway and the external pressure source, and
- activating the impeller and the external pressure source, so as to allow retrograde airflow from the external pressure source to the patient while simultaneously compelling airflow from the airway to the housing vent.
A method of providing intrathoracic pressure regulation (IPR) to an individual, the method comprising:
- coupling an IPR system with an airway of the individual, wherein the IPR system includes a blower that enhances a negative pressure within the patient's lungs, and using the IPR system to manipulate respiratory gas exchange such that intrathoracic pressures during exhalation remain at or below atmospheric pressure, thereby enhancing venous blood flow back to the thorax into the heart and lungs;
- and
- periodically injecting air to the patient's lungs while simultaneously operating the blower.
Dependencies are inferred from the claim text.